I kind of notice slower traffic for sales here too. Kind of a shame...
I regretted buying a Lumapower M3 transformer in the day. Too big and bulky for what it did, the mode switching was flaky, and it gave a lot of configuration options. Too bad they all sucked. This is ancient history though. Lately I somewhat regret buying too many decent but not awesome cheap lights. They are fun to get, have pretty good features and such, but are just kind of mediocre to me, surpassed by too many of my higher dollar, more customized or just higher end lights I prefer carrying.
The cheaper ones have been good (sometime amazing) values for what they can do, but after buying them they sort of just languish... Probably good for backups, gifting, or bail out bags I guess.